"The sharp knife goes where you send it, the dull knife goes where it wants" is a reminder to keep your edges sharp. The dull blade is deflected by a hard material.
A blunt knife's edge is thicker but not sharp. Hence, it is difficult to cut with a blunt knife.
That would be one without a sharp edge..like knife or chisel.
A sharp knife cuts much better than a blunt knife. A sharp knife is less likely skid off and cause an accidental wound.
area of the edge of the blade is smaller for a sharp knife. so for the same force the pressure under the blade will be greater and smaller force required to give the same pressure.
A sharp knife has a thinner blade that exerts more concentrated cutting force, making it easier to slice through vegetables without applying excessive pressure. A blunt knife, on the other hand, requires more force to cut, increasing the risk of slipping and causing accidents. Additionally, a sharp knife produces cleaner cuts, resulting in less damage to the cell walls of the vegetables and a reduced loss of nutrients and juices.
area of the edge of the blade is smaller for a sharp knife. so for the same force the pressure under the blade will be greater and smaller force required to give the same pressure.
a blunt knife has larger surface area than a sharp one. Hence force applied will have its effect on larger area causing it difficult to cut vegetables.(its just like : a nail is hammered into the wall from its pointed side....if tried to hammer on the opposite side the result will be nothing.Aki ...
A sharp knife requires less force to cut through the apple because it has a finer edge that can easily slice through the fruit's skin and flesh. On the other hand, a blunt knife requires more force to cut, making the process of slicing an apple more difficult and less precise. This extra force also increases the risk of the knife slipping and causing injury.
By erosion of the cutting edge
Blunt lances and swords without a sharp edge.
The steel blade of a knife will hold a sharp cutting edge.
An object (as a knife for ex.) with a thin edge.